hasMbstring = extension_loaded('mbstring'); $this->buildHashmap(); } /** * Convert string to lowercase using mbstring if available, fallback to strtolower */ private function toLower(string $string): string { $string = trim($string); if ($this->hasMbstring) { return mb_strtolower($string, 'UTF-8'); } return strtolower($string); } /** * Convert first character of each word to uppercase using mbstring if available, fallback to ucwords */ private function toTitleCase(string $string): string { if ($this->hasMbstring) { return mb_convert_case($string, MB_CASE_TITLE, 'UTF-8'); } return ucwords($string); } private array $iso639_1 = []; private array $iso639_2t = []; private array $iso639_2b = []; private array $iso639_3 = []; private array $langEnglish = []; private array $code2tToCode1 = []; private array $code1ToCode2t = []; private array $code2bToLang = []; private function buildHashmap(): void { foreach ($this->languages as $lang) { $iso639_1 = $this->toLower($lang[self::INDEX_ISO639_1]); $iso639_2t = $this->toLower($lang[self::INDEX_ISO639_2T]); $iso639_2b = $this->toLower($lang[self::INDEX_ISO639_2B]); $iso639_3 = $this->toLower($lang[self::INDEX_ISO639_3]); $english = $lang[self::INDEX_ENGLISH_NAME]; $native = $lang[self::INDEX_NATIVE_NAME]; $val = [ self::KEY_CODE_1 => $iso639_1, self::KEY_CODE_2T => $iso639_2t, self::KEY_CODE_2B => $iso639_2b, self::KEY_CODE_3 => $iso639_3, self::KEY_ENGLISH => $english, self::KEY_NATIVE => $native, ]; if (!empty($iso639_1)) { $this->iso639_1[$iso639_1] = $val; } if (!empty($iso639_2t)) { $this->iso639_2t[$iso639_2t] = $val; } if (!empty($iso639_2b)) { $this->iso639_2b[$iso639_2b] = $val; $this->code2bToLang[$iso639_2b] = $lang; } if (!empty($iso639_3)) { $this->iso639_3[$iso639_3] = $val; } $this->langEnglish[$this->toLower($english)] = $val; if (!empty($iso639_2t) && !empty($iso639_1)) { $this->code2tToCode1[$iso639_2t] = $iso639_1; } if (!empty($iso639_1) && !empty($iso639_2t)) { $this->code1ToCode2t[$iso639_1] = $iso639_2t; } } } /* * Get all language data */ public function allLanguages(): array { return $this->languages; } /* * Get language name from ISO-639-1 (two-letters code) */ public function languageByCode1(string $code): string { return $this->iso639_1[$this->toLower($code)][self::KEY_ENGLISH] ?? ''; } /* * Get native language name from ISO-639-1 (two-letters code) */ public function nativeByCode1(string $code, bool $isCapitalized = false): string { $native = $this->iso639_1[$this->toLower($code)][self::KEY_NATIVE] ?? ''; return $isCapitalized ? $this->toTitleCase($native) : $native; } /* * Get language name from ISO-639-2/t (three-letter codes) terminologic */ public function languageByCode2t(string $code): string { return $this->iso639_2t[$this->toLower($code)][self::KEY_ENGLISH] ?? ''; } /* * Get native language name from ISO-639-2/t (three-letter codes) terminologic */ public function nativeByCode2t(string $code, bool $isCapitalized = false): string { $native = $this->iso639_2t[$this->toLower($code)][self::KEY_NATIVE] ?? ''; return $isCapitalized ? $this->toTitleCase($native) : $native; } /* * Get language name from ISO-639-2/b (three-letter codes) bibliographic */ public function languageByCode2b(string $code): string { return $this->iso639_2b[$this->toLower($code)][self::KEY_ENGLISH] ?? ''; } /* * Get native language name from ISO-639-2/b (three-letter codes) bibliographic */ public function nativeByCode2b(string $code, bool $isCapitalized = false): string { $native = $this->iso639_2b[$this->toLower($code)][self::KEY_NATIVE] ?? ''; return $isCapitalized ? $this->toTitleCase($native) : $native; } /* * Get language name from ISO-639-3 (three-letter codes) */ public function languageByCode3($code): string { return $this->iso639_3[$this->toLower($code)][self::KEY_ENGLISH] ?? ''; } /* * Get native language name from ISO-639-3 (three-letter codes) */ public function nativeByCode3(string $code, bool $isCapitalized = false): string { $native = $this->iso639_3[$this->toLower($code)][self::KEY_NATIVE] ?? ''; return $isCapitalized ? $this->toTitleCase($native) : $native; } /* * Get ISO-639-1 (two-letters code) from language name */ public function code1ByLanguage(string $language): string { return $this->langEnglish[$this->toLower($language)][self::KEY_CODE_1] ?? ''; } /* * Get ISO-639-2/t (three-letter codes) terminologic from language name */ public function code2tByLanguage(string $language): string { return $this->langEnglish[$this->toLower($language)][self::KEY_CODE_2T] ?? ''; } /* * Get ISO-639-2/b (three-letter codes) bibliographic from language name */ public function code2bByLanguage(string $language): string { return $this->langEnglish[$this->toLower($language)][self::KEY_CODE_2B] ?? ''; } /* * Get ISO-639-3 (three-letter codes) from language name */ public function code3ByLanguage(string $language): string { return $this->langEnglish[$this->toLower($language)][self::KEY_CODE_3] ?? ''; } /** * Gat language array from ISO-639-2/b (three-letter code) */ public function getLanguageByIsoCode2b(string $code): ?array { return $this->code2bToLang[$this->toLower($code)] ?? null; } /** * Get ISO-639-2t code from ISO-639-1 code */ public function code2tByCode1(string $code): string { return $this->code1ToCode2t[$this->toLower($code)] ?? ''; } }